Question

A seed drill has 8 cells on cup feed metering mechanism. The rolling of ground wheel to that of the roller is 2:3. If drilling is done at a forward speed of 3.5 km/h, spacing in the rows in mm will be ___________

(a) 54.1

(b) 22.53

(c) 34.83

(d) 116

The question was asked during an interview for a job.

This question is from Sowing Equipments topic in portion Sowing Equipments of Farm Machinery

Answer 1

The correct option is (c) 34.83

The best I can explain: Length covered by ground wheel in 1 revolution = \(\frac{π*2*200}{3*1000}\) = 0.418 m

Seed to seed spacing = 0.418/12 = 34.83 mm.